JP2564834Y2 - Packaging equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus for packaging an object to be packaged with a film such as a stretch film.

[0002]

2. Description of the Related Art An object to be packaged, in which articles such as fresh foodstuffs are stored in a tray made of a resin material on a film stretched over a predetermined portion of a packaging device, is pushed up from below by an elevator mechanism, and the upper surface of the packaged object is raised. In a packaging apparatus in which the end of the film is folded to the bottom of the object to be packaged by a film folding mechanism composed of a left and right folding member and a front or rear folding member, the shape of the material to be packaged (the tray By changing the operation timing of the folding member depending on (size), good-looking packaging can be performed regardless of the size and shape of the article to be packaged.

When the operation timing of the folding member is changed according to the size of the tray as described above, for example, in the case of a tray that is extremely long, such as a tray for storing a sword fish,
The front or rear folding member abuts on the head disposed on the front or rear folding member side of the left or right head of the elevator mechanism before the left or right folding member abuts. In consideration of this, the applicant can tilt the head on the front or rear folding member side of the left and right heads in a direction (oblique direction) between the traveling direction of the left and right folding members and the traveling direction of the front or rear folding member. , A packaging machine equipped with an elevator mechanism having a head capable of tilting even if any of the left and right folding members and the front or rear folding member abuts was developed and filed (Japanese Patent Application Laid-Open No. 2-12721).
No. 2).

[0004]

However, as described above, when the head is configured to be tiltable in a direction between the traveling direction of the left and right folding members and the traveling direction of the front or rear folding member, the head has Regardless of which of the left and right folding members or the front or rear folding member abuts, a force in the direction of tilting and a force in the direction of rotating the head are applied to the head, and the film sandwiched between the head and the folding member rotates the head. In some cases, the head was rubbed and torn off by the force in the direction in which the head was moved, or the head was damaged.

The present invention has been made in view of the above points, and when the film end is folded into the bottom of the package by the folding member, there is a possibility that the film or the head sandwiched between the folding member and the head may be damaged. It is an object of the present invention to provide a packaging device without any.

[0006]

[MEANS FOR SOLVING THE PROBLEMS]
The invention according to claim 1 is that, after an object to be packaged is lifted up from below by a lift mechanism on a film stretched on a predetermined portion of the packaging device and the upper surface of the object to be packaged is covered with the film, the film end is removed. In a packaging device that folds the bottom of a packaged object by a film folding mechanism including a left and right folding member and a front or rear folding member, the packaged object mounting portion of the elevator mechanism includes a plurality of heads. head predetermined head of the by the left and right folding members and the front or rear folding member, one between the traveling direction of the traveling direction and the front or rear folding member of the left and right folding members
A tiltable in direction, and the head is rotating on the base unit and the base table portion
And a rotatably supported head .

The invention according to claim 2 is based on claim 1.
In the packaging device described in the above, among the plurality of heads, a head that only abuts only the left and right folding members uses a head that tilts only in the traveling direction of the left and right folding members, and only the front or rear folding member is used. Use a head that tilts only in the traveling direction of the front or rear folding member for a head that is not provided, and advance the front or rear folding member to a head where both the left and right folding member and the front or rear folding member may abut. And a head that tilts in one direction between the left and right folding members, and the head is rotatably supported by the base and the base.
And a head .

[0008]

According to the present invention, when the film end is folded into the bottom of the package by the left and right folding members and the front or rear folding member, the left and right folding members and the front or rear folding member can be tilted. abuts against the head, but the direction of the force to rotate the direction of the force and head being tilted to the head Ru Wa pressurized, since the head of the head is rotatably supported by the base unit, rotation head portion By doing
The force in the rotating direction is absorbed, and the possibility that the film sandwiched between the head and the folding member is torn off is eliminated.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a configuration example of a packaged object placing portion of an elevator mechanism of the packaging device of the present invention, and FIGS. 2 and 3 are plan views showing operations of a head of the packaged object placing portion. As shown, a plurality of (five in the figure) central heads 101 are arranged at the center of the packaged object placing portion EH of the elevator mechanism, and a plurality of (four in the figure) are located on the left side of the central head 101.
Of the left heads 102 on the right side (4 in the figure).
) Of the inner right heads 103, and further, the inner left head 1
A plurality (five in the figure) of outer left heads 104
However, a plurality (five in the figure) of outer right heads 105 are arranged outside the inner right head 103.

As shown in FIG. 2, left and right folding plates 202 are provided on the left and right sides and the near side (lower side in the drawing) of the packaged article mounting portion EH.
203 and a front folding plate 201 are arranged, and a rear folding roller (not shown) is arranged on the opposite side (upper side in the drawing). The center head 101 is configured to be inclined at a predetermined angle in the traveling direction by the front folding plate 201, and the inner left and right heads 102 and 103 and the outer left and right heads 104 and 10 are provided.
5 is a predetermined angle in the direction (approximately 45 ° direction) between the traveling direction of the front folding plate 201 and the traveling direction of the left and right folding plates 202 and 203 by the front folding plate 201 or the left and right folding plates 202 and 203 as described in detail later. It is configured to tilt. Each of the inner left and right heads 102 and 103 and the outer left and right heads 104 and 105 has its head rotatably supported as described later in detail.

The central head 101 and the inner left and right heads 10
2 and 103 are both attached to a frame 106, and the outer left and right heads 104 and 105 are both attached to a frame 107. The outer left and right heads 104 and 105 attached to the frame 107 are used when the object to be packaged is large, and usually use the central head 101 and the inner left and right heads 102 and 103 attached to the frame 106. . That is, when packaging small and medium-sized items to be packaged, the frame 106 is raised, and when packaging large items to be packaged, the frame 106 and the frame 107 are simultaneously raised, and the items to be packaged are lifted. Press down on the film from below. Also, the central head 10
1 and inner left and right heads 102 and 103, inner left head 10
2 and the outer left head 104 and between the inner right head 103 and the outer right head 105, belt conveyors 301, 302, 303, and 3 for carrying the articles to be loaded into the article receiving section EH.
04 is arranged.

The front folding plate 201 and the left and right folding plates 202 and 203 move forward in the packaged object mounting portion EH of the elevator mechanism having the above-described structure, and as shown in FIG. 2, the central head 101, the inner left and right heads 102 and 103, and When the central head 101 abuts against the outer left and right heads 104 and 105, the center head 101 tilts by a predetermined angle in the traveling direction of the front folding plate 201, and the inner left and right heads 102 and 103 and the outer left and right heads 104 and 105.
Is the direction between the traveling direction of the left and right folding plates 202 and 203 and the traveling direction of the front folding plate 201 (the front folding plate 201
(A direction inclined at about 45 ° with respect to the traveling direction of the camera).

When the front folding plate 201 or the left and right folding plates 202 and 203 abut against the inner left and right heads 102 and 103 and the outer left and right heads 104 and 105, each head has a tilting force and a rotating direction. Although a force is applied, here, the head is configured to be rotatable in order to absorb the rotating force.

4A and 4B show the structure of one inner left head 102. FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a side view, and FIG. d) is a sectional view. In FIG. 4, reference numeral 102-1 denotes the inner left head 102 and the frame 10
6 is a bracket to be attached. Inner left head 1
Numeral 02 comprises a base part 102-2 and a head part 102-3, and the head part 102-3 is cylindrical, and a collar 102-5 is interposed in a bolt 102-4 having a tip fixed to the base part 102-2. It is supported rotatably. Also, the base 102-
2 is rotatably supported on the bracket 102-1 by a support shaft 102-6.
7 is urged clockwise as shown in FIG. 102-8 is a coil spring 10
A stopper for maintaining a vertical state against a clockwise urging force of 2-7.

In the inner left head 102 having the above structure, when the left folding plate 202 or the front folding plate 201 abuts on the head 102-3 and is pushed from the right side in FIG. It rotates counterclockwise around the support shaft 102-6 and tilts. The inner left head 102 is attached to the bracket 102-so that the tilt direction is between the traveling direction of the left folding plate 202 and the traveling direction of the front folding plate 201.
1 is attached to the frame 106.

The head 102-3 and the base 102-2
Is tilted, the head 102-3 is folded into the left folding plate 202.
Alternatively, the front folding plate 201 receives a tilting force and a rotating force.
It is absorbed by rotating about -4. In addition,
The structure of the inner right head 103 and the outer left and right heads 104 and 105 is also the same as the structure of the inner left head 102, and therefore the description thereof will be omitted. The head 102-3 is made of a resin material such as urethane.

Next, a description will be given of a packaging apparatus provided with an elevator mechanism having a packaged article mounting portion EH. 5 is an external view of the packaging device of the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a plan view. As shown in FIG. 5, the packaging apparatus includes an article loading mechanism 300, an elevator mechanism 100 having the article mounting section EH, a film folding mechanism 200, a package unloading mechanism 400, and a film supply and transfer mechanism 500.

The transporting mechanism 300 for transporting the packaged articles into the packaged article loading mechanism 300, and a plurality of conveyors for transporting the articles to be packaged from the conveyor 305 to the packaged article mounting portion EH of the elevator mechanism 100. Belt conveyor 301,3
02, 303, and 304. Loading conveyor 305
A centering width detector 306 for detecting the centering and the width of the loaded articles is provided on the frame of the packaging device, and the frame near the centering width detector 306 is provided with the operation of the packaging device. The unit 307 is arranged. A weighing mechanism 308 for weighing the articles to be packaged is arranged upstream of the belt conveyors 301, 302, 303, 304.

The belt conveyors 301, 302, 303,
Reference numeral 304 denotes a swing conveyor whose upstream end swings up and down, and belt conveyors 301, 302, 303, and 30.
4 receives the packaged object from the carry-in conveyor 305, descends when the packaged object reaches the weighing mechanism 308, places the packaged object on the weighing mechanism 308, and rises again when the weighing is completed. The packaged object is transported to the packaged object mounting portion EH of the elevator mechanism 100. Here, the movement of the packaged object is prevented by the stopper 309.

In the film supply mechanism 500, film rolls F1 and F2 are placed on two parallel support rollers 501 and 502, respectively. Feeding rollers 503,5 from each of the film rolls F1, F2
04 is selected from among the films f1 and f2 fed out through the film clamp 50, and the front end thereof is connected to the film clamp 50.
After being held at 5 and fed out by a predetermined length, it is cut by a film cutter (not shown) and stretched below the film folding mechanism 200.

Here, the elevator mechanism 100 is driven to push up the packaged object placed on the packaged product placing portion EH onto the stretched film from below, and the upper surface of the packaged product is covered with the film. At the same time, the object to be packaged is pushed up to the upper part of the film folding mechanism 200. Here, the front folding plate 201 and the left and right folding plates 202 and 203 are operated at a predetermined timing, and the front and left and right ends of the film are folded into the bottom of the package. At this time, when the front folding plate 201 or the left and right folding plates 202 and 203 abut against the center head 101, the inner left and right heads 102 and 103, and the outer left and right heads 104 and 105, they are tilted in the directions shown in FIGS. . At this time, the force for rotating the head as described above is applied to the head of each head. However, since the head rotates and absorbs the rotating force, there is no possibility that the film is torn and damaged.

After folding the front left and right ends of the film covering the upper surface of the package as described above into the bottom of the package, the discharge pusher 204 is driven to remove the package by the roller of the package discharge mechanism 400. By pushing the film toward the conveyor 401, the rear end of the film is folded by the rear folding roller 206 into the bottom of the packaged object. In FIG. 7,
207 is a crank mechanism for moving the front folding plate 201 forward and backward, and 208 and 209 are right and left folding plates 20 respectively.
2, 203 is a crank mechanism for moving forward and backward.

The roller conveyor 4 of the package unloading mechanism 400
01 on the label printer 40
A label printed with product information such as weight, unit price, price, and the like is affixed to the lower part of 2, and is conveyed over the heater conveyor 403. Then, the film folded into the bottom of the article to be packaged is heated and welded by the heater conveyor 403, and the article to be heated and welded is dropped onto the roller conveyor 404 and carried out.

In the above embodiment, by changing the operation timing of the folding member depending on the shape (the size of the tray) of the article to be packaged, a good-looking package can be obtained regardless of the dimensions of the article to be packaged. However, as described in Japanese Utility Model Laid-Open No. 3-102410, the operation amount (movement stroke) of the left and right folding members is changed depending on the shape of the packaged object (the size of the tray), or the Similarly, the movement is stopped at the time when the fixed operation is performed, and the movement is started again when the positional relationship with the front folding member becomes a predetermined relationship according to the shape of the packaged object. Good packaging can be performed. When such control is performed, the specific head is tilted only by the left and right folding plates. An embodiment in which such control is performed will be described below.

FIG. 8 is a plan view showing another example of the configuration of the article-receiving portion EH of the elevator mechanism of the packaging device of the present invention, and FIG. 9 is a plan view showing the operation thereof. This packaged object placing part E
H center head 101 and inner left and right heads 102 and 103
Is the same as the package placing portion EH shown in FIGS. 1 to 3 (however,
(The number of the central heads 101 is four), but the structures of the outer left and right heads 104 ′ and 105 ′ are different. Outer left and right head 10
4 'and 105' are left and right folding plates 202 and 20, respectively.
3 is a structure that tilts only in the traveling direction. In the packaged article mounting portion EH, the outer left and right heads 104 ′ and 105 ′ must be provided with the left and right folding plates 20 before the front folding plate 201.
The front folding plate 201 does not strike the outer left and right heads 104 ′ and 105 ′. Therefore, the outer left and right heads 10
4 'and 105' are left and right folding plates 202 and 20, respectively.
There is no inconvenience even if the structure tilts only in the traveling direction of No. 3.

FIG. 10 is a plan view showing another example of the configuration of the package-receiving portion EH of the elevator mechanism of the packaging device of the present invention. This packaged object placing portion EH is the packaged item placing portion E of FIG.
H, the outer left and right heads 104 ′ and 105 ′, the outer left and right heads 104 a,
105a has the same structure as the inner left and right heads 102 and 103 (however, the number of the central heads 101 is 5
). In the packaged article mounting portion EH, the outer left and right heads 104'a and 105'a are tilted in a direction between the traveling direction of the front folding plate 201 and the traveling direction of the left and right folding plates 202 and 203. In this case, the outer left and right heads 104 are used for packaging a product having a larger vertical width (length in the carrying direction of the article to be packaged) than the case of FIG.
This is suitable for the case where there are two cases, that is, the case where the front folding plate 201 abuts on a and 105a first and the case where the left and right folding plates 202 and 203 abut first.

In the above-described embodiment, the description has been given of the case of the packaging apparatus in which the side of loading the packaged object (the side of the conveyor 305) is defined as the front side and the opposite side (the side of the roller conveyor 401) is defined as the rear side. In a packaging apparatus in which the carry-in side of the packaged article is the same as the carry-out side of the packaged article, the rear end portion of the film covering the upper surface of the packaged article is folded by a rear folding plate, and then discharged by a discharge pusher. By pushing out the packaged object, the front end of the film is folded by the front folding roller. The present invention includes both packaging devices.

[0028]

[Effects of the Invention] As described above, claims 1 and 2 are described.
According to the invention of mounting, since the head of the package mounting portion of the head of the elevator mechanism is rotatably supported by the base portion, the head portion by the front or rear folding member or left and right folding members during the film folding since force to rotate the head applied to the is absorbed by the head portion is rotated, without a strong tensile force is applied to the sandwiched head and folding members film, the film is torn packaging An excellent effect that an accident of failure can be prevented can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a configuration of a packaged object placing portion of an elevator mechanism of a packaging device of the present invention.

FIG. 2 is a plan view showing the operation of the head of the packaged article placing section shown in FIG.

FIG. 3 is a plan view showing an operation of a head of the packaged article placing section shown in FIG. 1;

4 (a) is a plan view, FIG. 3 (b) is a front view, FIG. 3 (c) is a side view, and FIG.
(D) is a sectional view.

FIG. 5 is an external view of the packaging device of the present invention.

FIG. 6 is a side view of the packaging device of the present invention.

FIG. 7 is a plan view of the packaging device of the present invention.

FIG. 8 is a plan view showing another example of the configuration of the packaged object placing portion of the elevator mechanism of the packaging device of the present invention.

FIG. 9 is a plan view showing the operation of the head of the packaged article placing section shown in FIG. 8;

FIG. 10 is a plan view showing another configuration example of the packaged object placing portion of the elevator mechanism of the packaging device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Elevator mechanism 101 Central head 102 Inner left head 103 Inner right head 104 Outer left head 105 Outer right head 104 'Outer left head 105' Outer right head 102-1 Bracket 102-2 Basic part 102-3 Head 102-4 Bolt 102-5 Collar 102-6 Support shaft 102-7 Coil spring 200 Film folding mechanism 201 Front folding board 202 Left folding board 203 Right folding board 300 Packed object loading mechanism 301 Belt conveyor 302 Belt conveyor 303 Belt conveyor 304 Belt conveyor 400 Packaging Unloading mechanism 500 Film supply and transfer mechanism

Continuation of the front page (56) References JP-A-61-190408 (JP, A) JP-A-59-124212 (JP, A) JP-A-2-127212 (JP, A) JP-A 52-147184 (JP) JP-A-61-60410 (JP, A) JP-A-56-151616 (JP, A) JP-A-61-47314 (JP, A) JP-A-62-251311 (JP, A) 2-4445 (JP, B2)

Claims (2)

(57) [Scope of request for utility model registration] 1. An object to be packaged is pushed up from below by means of an elevator mechanism onto a film stretched over a predetermined portion of a packaging device, and the upper surface of the object to be packaged is covered with the film. In a packaging apparatus that folds a package to the bottom of a packaged object by a film folding mechanism including a front or rear folding member, the packaged object mounting portion of the elevator mechanism includes a plurality of heads. The predetermined head can be tilted in one direction between the traveling direction of the left and right folding member and the traveling direction of the front or rear folding member by the left and right folding member and the front or rear folding member , and the head is
It comprises a base and a head rotatably supported by the base.
A packaging device characterized by being formed. 2. A head which only tilts in the traveling direction of the left and right folding members is used for a head which abuts only the left and right folding members among the plurality of heads. For the head that does not hit, use a head that tilts only in the traveling direction of the front or rear folding member, and use the front or rear folding member for the head where both the left and right folding member and the front or rear folding member may abut. A head tilting in one direction between the traveling direction of the left and right folding members and the traveling direction of the left and right folding members, and the head is rotatably supported by the base portion and the base portion.
The packaging device according to claim 1, further comprising a held head .